- Giant Gas Cloud. A star originates from a large cloud of gas. …
- Protostar. When the gas particles in the molecular cloud run into each other, heat energy is produced. …
- T-Tauri Phase. …
- Main Sequence. …
- Red Giant. …
- The Fusion of Heavier Elements. …
- Supernovae and Planetary Nebulae.
What are the stages of a star life cycle?
Step
1 – Green
– A cloud of gas and dust collapses due to gravity, creating a protostar. Step 2 – Blue – Gravitational energy powers the young star until… Step 3 – Yellow – … nuclear fusion occurs.
What are the 5 stages of a star?
- A nebula. A star forms from massive clouds of dust and gas in space, also known as a nebula.
- Protostar. As the mass falls together it gets hot.
- Main sequence star.
- Red giant star.
- White dwarf.
- Supernova.
- Neutron star or black hole.
What are the 6 stages of a star?
- STAGE 1: AN INTERSTELLAR CLOUD.
- STAGE 2: A COLLAPSING CLOUD FRAGMENT.
- STAGE 3: FRAGMENTATION CEASES.
- STAGE 4: A PROTOSTAR.
- STAGE 5: PROTOSTELLAR EVOLUTION.
- STAGE 6: A NEWBORN STAR.
- STAGE 7: THE MAIN SEQUENCE AT LAST.
What are the 4 life stages of a star?
- A nebula. A star forms from massive clouds of dust and gas in space, also known as a nebula. …
- Protostar. As the mass falls together it gets hot. …
- Main sequence star. …
- Red giant star. …
- White dwarf. …
- Supernova. …
- Neutron star or black hole.
How is a star born step by step?
A star is born when atoms of light elements are
squeezed under enough pressure for their nuclei to undergo fusion
. All stars are the result of a balance of forces: the force of gravity compresses atoms in interstellar gas until the fusion reactions begin.
What color of star is the hottest?
White stars are hotter than red and yellow.
Blue stars
are the hottest stars of all.
How long does a star live for?
Generally, the more massive the star, the faster it burns up its fuel supply, and the shorter its life. The most massive stars can burn out and explode in a supernova after only a few million years of fusion. A star with a mass like the Sun, on the other hand, can continue fusing hydrogen for
about 10 billion years
.
What are the three end stages of stars?
- White Dwarf.
- Neutrons Star.
- Black Hole.
Which type of stars are the youngest?
| TYPE Star | IV Subgiants | V Main sequence stars (dwarf stars) | VI Subdwarf | VII White Dwarf |
|---|
What is star death called?
While most stars quietly fade away, the supergiants destroy themselves in a huge explosion, called
a supernova
. The death of massive stars can trigger the birth of other stars.
What happens after a star forms?
From Pre-Stellar Core to Star
When the gas comes close enough to the star,
it falls onto the surface of the star because of gravity, and the star grows
. This process of growing is called an accretion process and the star is said to accrete (accumulate) matter from the disk.
What is a star birth called?
Most stars are born inside great clouds of gas and dust called
nebulas
. The process begins when a nebula starts to shrink, then divides into smaller, swirling clumps.
What happens to a star at the end of its life?
Most stars take millions of years to die. When a star like the Sun has burned all of its hydrogen fuel, it expands to become a red giant. … After puffing off its outer layers,
the star collapses to form a very dense white dwarf
.
What is the largest star in the universe?
The largest known star in the universe is
UY Scuti
, a hypergiant with a radius around 1,700 times larger than the sun.
What happens when a small star dies?
Stars die because they exhaust their nuclear fuel. … Once there is no fuel left, the
star collapses and the outer layers explode as a ‘supernova’
. What’s left over after a supernova explosion is a ‘neutron star’ – the collapsed core of the star – or, if there’s sufficient mass, a black hole.
